Investigations
- Chest X-Ray - Right ventricular hypertrophy, right atrial dilatation, prominent pulmonary artery, peripheral lung fields show reduced vascular markings. Patients of chronic obstructive pulmonary disease show features of hyperinflation which include widened intercostal space, increased translucency of lung and flattened diaphragm.
- ECG - Right ventricular hypertrophy - right axis deviation, prominent R wave in lead V1 & inverted T waves in right precordial leads, Large S in Lead I, II and III; Large Q in lead III, Tall Peaked P waves (P pulmonale) in lead II, III and aVF. All the above features are not found in a single patient but different patients show different combination of these findings.
- Echocardiogram - Right ventricular dilatation and tricuspid regurgitation is likely
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